. Conforms to ASTM D1264, D4950 and related specifications
Rotates a lubricated ASTM ball bearing at 600rpm in a modified
bearing/housing assembly while impinging the bearing with a jet of water
at the specified flow rate and temperature. The tared bearing and bearing
shields are weighed before installation in the bearing housing and again
after testing and drying to determine the amount of sample loss. Consists
of reservoir, bearing housing, circulation system and drive motor.
Reservoir is equipped with cartridge heater, thermoregulator and
thermometer port for accurate temperature control at 100°F and 175°F
(38°C and 79°C) per ASTM specifications. Circulation system includes
constant velocity carbon bearing gear pump, valves and flowmeter
directing a controlled water flow to a capillary (1mm) spray nozzle aimed
at the bearing housing. Rugged 1
/3hp drive motor rotates test bearing at
600rpm while driving the circulation pump. A two-pulley system permits
independent pump operation to circulate water while heating it to test
temperature. Mounted on a finished steel base with locating feet for
permanent benchtop placement.
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